Gaza militants unleash heavy rocket fire on Israel

A girl named Asma cries at the funeral of her brother, Gomha Abu Shalouf, 27, a member of the military wing of Hamas who was killed in an airstrike in Rafah in the Gaza Strip.

A girl named Asma cries at the funeral of her brother, Gomha Abu...

JERUSALEM — Militants in the Gaza Strip unleashed dozens of rockets on southern Israel late Monday, setting off air raid sirens and forcing hundreds of thousands of Israelis to stay indoors as the military rushed more forces to the border and warned that even heavier fighting looked likely.

The latest violence came as Israel pressed forward with its investigation of six Jewish youths suspected of abducting and killing a Palestinian teenager and as Israeli leaders sought to calm an emotional debate over whether the country's politically charged atmosphere led to the gruesome crime. An Israeli official said three of the youths had confessed to the attack.

Tensions have been high since three Israeli teenagers kidnapped June 12 in the West Bank were later found dead. That was followed by last week's slaying of the Palestinian youth in what many suspect was a revenge attack. Throughout the unrest, Gaza militants have launched more than 200 rockets and mortars into Israel, including close to 100 Monday alone.

Israel has responded with dozens of airstrikes but has not been able to halt the attacks. Eight Palestinian militants were killed in fighting Monday, the highest death toll yet.

Dozens of rockets were fired Monday, including 40 in a single hour after nightfall, setting off air raid sirens up to 50 miles from Gaza, the military said.

Twelve rockets were intercepted by rocket-defense batteries, it added, while the others landed in open areas. It was the deepest penetration of rocket strikes in the current round of fighting and raised the likelihood of an even tougher Israeli response.

Maj. Gen. Yoav Mordechai, a senior military official, gave an interview in Arabic to Al-Jazeera, warning that Hamas would bear the consequences for the escalation.

Among the dead were six Hamas militants who Israel said were killed in an accidental blast in a tunnel packed with explosives. Hamas, the Islamic militant group that controls Gaza, vowed revenge, saying “the enemy will pay a tremendous price.”

Lt. Col. Peter Lerner, an Israel Defense Forces spokesman, said the army was moving two infantry forces to the Gaza border and had received authorization to mobilize up to 1,500 reservists.

The deaths of the Hamas militants had a “substantial influence” on the situation, he said.

“There is a potential of deterioration due to their death. Therefore, the IDF has to continue to reinforce capabilities in the south, with the potential that things could escalate further.”

Israeli security officials said their nation was leaning against a massive operation and would likely increase the pressure gradually with stronger and more numerous retaliatory attacks. They spoke on condition of anonymity because they were not authorized to discuss internal military deliberations with reporters.

In Washington, State Department spokeswoman Jen Psaki said the United States condemns the rocket fire. “We also support Israel's right to defend itself against these attacks.”

During the day, lines of Israeli tanks and buses were gathered near the border area as soldiers milled about.

Late Monday, with roads in southern Israel all but empty, a flatbed truck carrying an armored vehicle made its way toward the border area.

The increased rocket fire followed the killing of Mohammed Abu Khdeir, a 16-year-old Palestinian boy from east Jerusalem who was abducted and burned to death last week.

Israeli officials Sunday announced the arrests of six Jewish youths in the killing, ruling out earlier theories that criminal activity or personal reasons might have been a factor.